Hi, On Thu, Apr 29, 2004 at 01:40:47PM +0200, Richard Peters wrote:
From: "Christoph Ludwig" <cludwig@cdc.informatik.tu-darmstadt.de>
I didn't read earlier discussions of your proposal. But could you briefly summarize what does your library set apart from other arbitrary precision libraries (from the top of my head: gmp, libI, cln, piologie...)?
There is not much special about my library. Like the gmp, this library uses expression templates to avoid the creation of temporary values, which when the values become large provide an increase in performance.
I sometimes wonder whether a bigint library that implements move semantics could not provide an additional significant efficiency gain. (Since I can avoid temporaries most of the time, my applications don't profit from expression templates that much.) I never performed experiments, though, this is only a conjecture. Do you have any plans in this direction?
Once the interface matures, I want to make the library be able to use other arbitrary magnitude libraries to perform high-speed calculations.
Hm, I "inherited" some time ago the task to maintain a computer algebra library that can be built on top of several bigint libraries. Since these libraries are optimized for different use cases and this fact shows in their respective interfaces, it is hard to come up with a wrapper that does neither favour one particular library nor pulls all libraries down to their least common denominator.
Apart from that, this library is released under the boost license. The other libraries that I know of are released under GPL or have other restrictions.
This is certainly a valid point. Regards Christoph -- http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/cludwig.html LiDIA: http://www.informatik.tu-darmstadt.de/TI/LiDIA/Welcome.html